2 Timothy 2:13

2:13 If we are unfaithful, he remains faithful, since he cannot deny himself.

2 Timothy 2:21

2:21 So if someone cleanses himself of such behavior, he will be a vessel for honorable use, set apart, useful for the Master, prepared for every good work.

2 Timothy 4:3

4:3 For there will be a time when people will not tolerate sound teaching. Instead, following their own desires, they will accumulate teachers for themselves, because they have an insatiable curiosity to hear new things.